Large Yellow Flowers
Produces impressive golden-yellow flowers with five distinctive petals and prominent clusters of stamens that create beautiful summer garden displays.
Hypericum pyramidatum Great Saint John's Wort Seeds for Sale
Suitable for home gardening use
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Rs. 16.99 INR
Sale price
Rs. 16.99 INR
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Product description
Hypericum pyramidatum Great Saint John's Wort Seeds
Great Saint John's Wort (Hypericum pyramidatum), also known as Giant Saint John's Wort, is an attractive flowering perennial admired for its large, bright yellow flowers and upright growth habit. Its showy five-petaled blooms feature prominent golden stamens that create a striking display during the summer flowering season. The plant produces attractive green foliage and can bring natural beauty to perennial borders, cottage gardens, meadow plantings, and pollinator-friendly landscapes. It generally prefers sunny to partially shaded locations with moist, well-drained soil.
Great Saint John's Wort
Bright Yellow Flowers
Hardy Perennial
Pollinator Friendly
Key Features
Upright Growth Habit
Develops strong, upright stems and attractive green foliage, making it an excellent choice for adding height and structure to perennial garden beds.
Attracts Pollinators
Its nectar- and pollen-rich flowers attract bees, butterflies, and other beneficial pollinating insects to suitable garden environments.
Hardy Perennial Plant
Returns year after year in suitable growing climates, providing recurring seasonal flowers and natural ornamental interest.
Product Highlights
Large golden-yellow flowers
Distinctive five-petaled blooms
Prominent golden stamens
Upright perennial growth habit
Attracts bees and butterflies
Suitable for cottage gardens
Ideal for perennial borders
Prefers moist, well-drained soil
Blooms during the summer season
Suitable for naturalized plantings
Specifications
| Scientific Name | Hypericum pyramidatum |
| Botanical Synonym | Hypericum ascyron subsp. pyramidatum |
| Common Name | Great Saint John's Wort; Giant Saint John's Wort |
| Plant Family | Hypericaceae |
| Seed Type | Flower Seeds; Perennial Ornamental Seeds |
| Plant Type | Herbaceous Perennial |
| Growth Habit | Upright, clump-forming growth |
| Flower Color | Bright Golden Yellow |
| Flower Shape | Five-petaled flowers with prominent stamens |
| Blooming Season | Summer, generally July to August in suitable climates |
| USDA Hardiness Zones | Commonly listed for Zones 3–6; climate suitability varies |
| Planting Season | Spring or fall, depending on local climate and sowing method |
| Seed Starting | Surface sowing after approximately 60 days of cold-moist stratification |
| Germination Time | Variable; approximately 30–90 days after stratification under suitable conditions |
| Germination Temperature | Cool conditions around 15–18°C after stratification |
| Sunlight | Full Sun to Partial Shade |
| Soil Requirements | Moist, well-drained soil; adaptable to suitable clayey and rocky soils |
| Watering | Regular watering to maintain consistent soil moisture during establishment |
| Mature Plant Height | Approximately 2–5 feet (60–150 cm) |
| Mature Plant Spread | Approximately 1–3 feet (30–90 cm) |
| Plant Spacing | Approximately 1–3 feet, depending on the desired planting arrangement |
| Wildlife Attraction | Bees, butterflies, and other pollinating insects |
| Maintenance | Generally low maintenance once established |
Growing Guide
Step 1: Prepare the Seeds
Great Saint John's Wort seeds benefit from cold-moist stratification before sowing. Mix the seeds with a small amount of moist growing medium, place them in a suitable sealed container, and refrigerate for approximately 60 days. Keep the medium moist but not waterlogged.
Great Saint John's Wort seeds benefit from cold-moist stratification before sowing. Mix the seeds with a small amount of moist growing medium, place them in a suitable sealed container, and refrigerate for approximately 60 days. Keep the medium moist but not waterlogged.
Step 2: Prepare the Growing Medium
Choose a seed-starting tray or small pots with drainage holes. Fill them with a fine-textured, moist, well-drained seed-starting mix. A light, loose growing medium helps provide suitable conditions for young seedlings.
Choose a seed-starting tray or small pots with drainage holes. Fill them with a fine-textured, moist, well-drained seed-starting mix. A light, loose growing medium helps provide suitable conditions for young seedlings.
Step 3: Sow the Seeds
After stratification, scatter the seeds over the surface of the prepared soil. Press them gently into the growing medium without covering them deeply, as light supports germination. Mist carefully to maintain consistent moisture without washing the seeds away.
After stratification, scatter the seeds over the surface of the prepared soil. Press them gently into the growing medium without covering them deeply, as light supports germination. Mist carefully to maintain consistent moisture without washing the seeds away.
Step 4: Provide Suitable Growing Conditions
Keep the seed tray in a cool, bright location with temperatures around 15–18°C. Maintain consistent moisture and provide sufficient indirect light. Germination can be variable and may take several weeks or longer after the cold treatment.
Keep the seed tray in a cool, bright location with temperatures around 15–18°C. Maintain consistent moisture and provide sufficient indirect light. Germination can be variable and may take several weeks or longer after the cold treatment.
Step 5: Transplant and Maintain
Once seedlings develop several true leaves and become strong enough to handle, transplant them carefully into individual pots or a prepared garden location. Gradually acclimatize young plants to outdoor conditions. Provide full sun to partial shade, moist well-drained soil, and regular watering during establishment.
Once seedlings develop several true leaves and become strong enough to handle, transplant them carefully into individual pots or a prepared garden location. Gradually acclimatize young plants to outdoor conditions. Provide full sun to partial shade, moist well-drained soil, and regular watering during establishment.
Bring Golden Summer Beauty with Great Saint John's Wort
Add natural color and impressive flowering interest to your garden with Great Saint John's Wort. Its large, golden-yellow flowers, prominent stamens, and upright perennial growth make it an appealing choice for cottage gardens, perennial borders, and pollinator-friendly landscapes. With proper seed preparation, suitable light, and consistent soil moisture, Hypericum pyramidatum can become a beautiful addition to your outdoor planting space.
Frequently Asked Questions
Learn more about Great Saint John's Wort seed germination, flowering characteristics, and growing requirements.
How do you germinate Great Saint John's Wort seeds?
Great Saint John's Wort seeds generally benefit from approximately 60 days of cold-moist stratification before sowing. After the chilling period, surface sow the seeds in moist seed-starting mix without covering them deeply. Keep them in a bright, cool location at around 15–18°C. Germination can be irregular and may take several weeks or longer depending on seed quality and growing conditions.
How tall does Hypericum pyramidatum grow, and when does it bloom?
Hypericum pyramidatum typically grows approximately 2–5 feet tall and develops an upright perennial form. It generally produces large golden-yellow flowers during summer, commonly around July and August in suitable temperate climates. Its prominent stamens and five-petaled flowers make it an attractive choice for perennial borders and naturalized garden areas.
Does Great Saint John's Wort attract bees and butterflies?
Yes. Great Saint John's Wort is valued as a pollinator-friendly flowering perennial. Its bright yellow flowers provide floral resources that attract bees, butterflies, and other beneficial insects. Growing it in a sunny or partially shaded garden with suitable soil moisture can help create a welcoming environment for pollinators.